TW201436720A - Filter cigarette and manufacturing method thereof - Google Patents

Abstract

A filter cigarette (10A) manufactured by a manufacturing method of this invention comprises: a filter (14D) which is arranged in tandem in the proximal end of a cigarette (12); and a chip paper (16) which links the filter (14D) and the cigarette (12); wherein, the filter (14D) is provided with a plurality of axial passages (32) in the outer peripheral portion, some of the axial passages (32) are respectively provided with an axial passage (32a), and the axial passage (32a) is closed by a dam unit (38); on the other hand, the chip paper (16) is provided with a plurality of send holes (42) which are capable of communicating with the axial passages (32a). During smoking of the filter cigarette (10A), both of the dam unit (38) and the send hole (42) are in the status of being placed in user's oral cavity, and the mainstream smoke being led into the axial passage (32a) is sent from user's oral cavity to the radial direction of the filter cigarette (10A) through the send hole (42).

Description

Filter cigarette and manufacturing method thereof

The present invention relates to a filter cigarette and a method of manufacturing the same, and more particularly to a filter cigarette which allows a user to efficiently taste the flavor and taste of mainstream cigarettes of cigarettes and a method of manufacturing the same.

At the time of smoking of the filter cigarette, the mainstream smoke generated from the cigarette reaches the user through the filter, so that the user can taste the aroma and flavor of the mainstream smoke filtered by the filter (for example, refer to Patent Document 1). Further, the filter cigarette of Patent Document 1 has a plurality of vent holes in the outer layer of the cigarette and the filter, and the vent holes are distributed in the circumferential direction of the filter at intervals.

When the filter cigarette is smoked, the vent hole introduces external air into the filter, and the introduced external air system dilutes the mainstream smoke in the filter. Therefore, the filter cigarette having the vent hole provides a more relaxed smoking sensation for the user than the filter cigarette without the vent hole.

(previous technical literature) (Patent Literature)

Patent Document 1: Japanese Patent Laid-Open No. 5-23158 (JP 1999323258 A)

When the filter cigarette is used for smoking, the filtered mainstream smoke is sent out from the suction nozzle end face of the filter toward the axis of the filter in the user's mouth regardless of whether or not the vent hole is present. Therefore, the mainstream smoke system only flows from the end face of the mouth toward the inside of the mouth, and it is impossible to spread the mainstream smoke covering the entire area of the mouth. Therefore, filter cigarettes do not allow the user to taste the flavor and taste of mainstream smoke efficiently.

SUMMARY OF THE INVENTION An object of the present invention is to provide a filter cigarette which can allow a user to efficiently taste the flavor and taste of mainstream smoke, and a method of manufacturing the same, which can diffuse mainstream smoke of cigarettes into the oral cavity of a user while smoking.

The above object can be attained by the filter cigarette of the present invention comprising: a cigarette, a cylindrical filter arranged in series at the base end of the cigarette, and a cigarette and a filter wound thereon Mouth, and connect the cigarettes and the outer layer of the filter.

The filter of the present invention comprises: a filter core formed of a filter material and having a corrugated outer peripheral surface; a filter wrapper covering the filter core; being defined between the filter wrap and the outer peripheral surface of the waveform Extending in the axial direction of the filter, and having an open end at the end of the suction port of the filter, a plurality of axial passages for guiding the mainstream smoke from the cigarette toward the end face of the suction port; and the number of passages installed in the axial direction In the middle, and close the dam of the open end.

In another aspect, the outer layer paper of the present invention comprises: a configuration The filter bag is connected to a plurality of delivery holes that are provided in the axial direction of the dam, and that are placed in the user's mouth together with the dam when the cigarette is smoked.

According to the filter cigarette described above, when smoking, the mainstream smoke generated from the cigarette is filtered while passing through the filter, and then sent out from the suction end face of the filter along the axial direction of the filter cigarette into the oral cavity of the user.

On the other hand, a portion of the mainstream smoke is directed into the axial direction passage. Mainstream smoke that is guided into the axial direction passage that does not have the dam portion is sent out from the suction nozzle end face of the filter along the axis direction of the filter cigarette. On the other hand, the mainstream smoke guided into the axial direction passage having the dam portion is blocked by the dam portion, and passes through the filter packing material, from the delivery hole of the outer paper to the filter cigarette in the user's mouth. The diameter direction is sent out.

Mainstream smoke guided into the axial direction passage, and then filtered by the filter, and promoted in the user's mouth to spread the mainstream smoke sent out in the diameter direction of the filter cigarette in the oral cavity, so use The flavor and taste of the cigarette can be tasted efficiently. Since the number of the delivery holes for the mainstream smoke is increased, the advantage is increased, so that the dam portion is preferably installed in more than half of the axial direction passage.

On the other hand, the distance between the delivery hole and the end face of the suction port is preferably within 8.0 mm.

Further, the outer paper sheet may include a plurality of vent holes different from the delivery holes, and the vent holes allow external air to be introduced into the filter. When smoking, the venting holes introduce external air into the filter, so externally The introduction of gas dilutes the mainstream smoke, thus providing a more relaxed smoking sensation for the user. Even if the mainstream smoke is diluted, as in the above, the mainstream smoke is sent out from the delivery hole to the diameter direction of the filter cigarette in the user's mouth, so that the user can fully taste the original flavor and taste of the cigarette.

In this case, the filter preferably includes a hole between the vent hole and the axial direction passage. Such a hole system helps to mix mainstream smoke and external gases, so that the dilution rate of mainstream smoke is uniform.

The present invention also provides a method of producing the filter cigarette, wherein the manufacturing method comprises: continuously forming a corrugated sheet by rotation of a pair of corrugating rolls, and the corrugated sheet includes a plurality of single sides forming a corrugated sheet The longitudinal direction groove and the group of the islands installed in the plurality of longitudinal grooves, the island portions of each group are arranged in the width direction of the corrugated sheet, and have a width of two parts of the dam portion, and the island a first step in which the groups of the portions are arranged at regular intervals along the longitudinal direction groove; after the first step, a rod-shaped continuous body is formed from the corrugated sheet, the filter material, and the filter wrapper, and the continuous system is delivered. a second step of forming a conduit between the longitudinal direction groove of the corrugated sheet and the filter wrapper and having a passage for the axial direction of the filter; and after the second step, cutting the continuous body to prepare for inclusion by the island portion In the filter of the dam portion formed by one group, the third step of cutting the continuous body so that the position of the group of the islands is at a predetermined position with respect to the cutting position of the continuous body; and After the steps, make An outer sheet connected to the filter cigarette, and become the outer layer of the filter paper in the axial direction of the passages have to be sent are assigned the The fourth step of the state of the exit hole.

This manufacturing method produces the above-described filter cigarette to achieve the object of the present invention.

For example, the third step is to periodically cut the continuous body to form a rod member including a group of one island portion, and then form two nozzles corresponding to the filter member so as to include a part of the rod member or the rod member. a double filter having a step of having one group of islands in the center of the double filter; the fourth step is to arrange cigarettes at both ends of the double filter, and then having the outer paper The double outer paper of 2 times width is wound around the cigarettes and the double filter to form a double filter cigarette equivalent to two parts of the filter cigarette, and the double outer paper is in the axial direction of each filter The step of having the state of the delivery hole to be dispensed; the manufacturing method is further provided with the fifth step of cutting the double filter cigarette in the island portion of the double filter to form two filter cigarettes.

The manufacturing method at this time can also manufacture the above-mentioned filter cigarette, and achieve the object of the present invention.

The third step preferably includes: detecting the group of the islands, and periodically generating a first detection program of the detection signal; detecting the continuum according to the cutting timing and the detection signal of the continuum in the third step a second detection program for cutting the continuum when viewed from a group of islands; and for eliminating a deviation between the cutting position and the predetermined position A control program for feedback control of at least one of the transfer speed of the corrugated sheet and the cut-off timing of the continuous body by the pair of corrugated rolls.

The third step of performing the feedback control described above prevents the island portion from being displaced from the center position of the double filter, and can accurately position the dam portion.

The filter cigarette of the present invention and the method for manufacturing the same are characterized in that, in the mouth of the user, the mainstream smoke is sent out from the delivery hole of the outer paper to the diameter direction of the filter cigarette in the mouth of the user, so that the mainstream smoke can be promoted in the oral cavity. Diffusion, allowing users to efficiently taste the flavor and taste of mainstream smoke.

10 _A , 10 _B , 10 _C , 10 _D ‧‧‧ Filter cigarettes

12‧‧ ‧ Cigarettes

14, 14 _D ‧‧‧ filter

16‧‧‧ outer paper

18‧‧‧ suction end face

20, 46‧‧‧ Ordinary filter elements

22‧‧‧ Charcoal filter elements

24‧‧‧Forming paper (filter packing material)

26‧‧‧Filter fiber bundle (filter material)

28‧‧‧Winding paper (filter packing material)

30‧‧‧Activated carbon particles

32, 32a, 32b‧‧‧ Axis direction access

34‧‧‧Waveout surface

36‧‧‧ inside end

38‧‧‧ dam

40‧‧‧vents

42‧‧‧Send hole

44‧‧‧ holes

48‧‧‧ rod manufacturing machine

50‧‧‧Packing section

52‧‧‧Assembled conveyor belt

54, 96, 98‧‧ ‧ diaphragm

56, 58‧‧‧ Filter tow

60‧‧‧roll

62, 64‧‧ ‧ silk source

66, 82‧‧‧Pre-tension roller

68, 84‧‧‧ initial rolls

70, 86‧‧‧Adding devices

72‧‧‧ Wave forming rolls

74‧‧‧ Wave sheet

76‧‧‧ Length direction slot

80, 80a, 80b‧‧‧ Island Department

88‧‧‧Send rolls

90‧‧‧ horn guide

92‧‧‧ cut section

100‧‧‧Control device

102‧‧‧ island sensor (first inspection procedure)

104‧‧‧Speed controller (2nd inspection program, control program)

106‧‧‧Laser piercing machine

108a to 108d‧‧‧ shots

Cc, Cp‧‧‧ continuum

CFR‧‧‧ Charcoal filter rod

DC‧‧ double cigarette

DCF‧‧‧Double hole filter (double filter)

IDDF‧‧ double double filter (double filter)

DF‧‧ double filter

DFC, DFC'‧‧‧Double filter cigarette

DPF‧‧‧Double ordinary filter (double filter)

DTP, DTP '‧‧‧ double outer paper

FC‧‧‧ filter cigarette

Group of G‧‧‧ Island Department

L ₁ , L ₂ ‧‧ ‧ laser light

PFR‧‧‧Ordinary filter rod

S _M , S _P , S _R , S _Q ‧‧‧ mainstream smoke

V _A ‧‧‧ arrow

Fig. 1 is a partially cutaway view showing the filter cigarette of the first embodiment.

Fig. 2 is an enlarged cross-sectional view showing a part of the filter cigarette of Fig. 1.

Fig. 3 is a view showing a part of the suction port end face of the filter cigarette of Fig. 1.

Fig. 4 is an enlarged cross-sectional view showing a part of the filter cigarette of the second embodiment.

Fig. 5 is an enlarged cross-sectional view showing a part of the filter cigarette of the third embodiment.

Fig. 6 is an enlarged cross-sectional view showing a part of the filter cigarette of the fourth embodiment.

Fig. 7 is a view showing the manufacture of the filter cigarettes of the first to fourth embodiments, A schematic view of a rod manufacturing machine used in the manufacture of components of the filter.

Figure 8 is a cross-sectional view showing a portion of the waveform forming roller in one of the seventh figures.

Fig. 9 is a view showing a part of one side of a corrugated sheet formed by a pair of corrugating rolls.

Figure 10 is a perspective view of the corrugated sheet of Figure 9.

Figure 11 is a longitudinal cross-sectional view showing a portion of the corrugated sheet of Figure 9.

Fig. 12 is a view showing a part of one side of a corrugated sheet of a modification.

Figure 13 is a longitudinal cross-sectional view showing a portion of the corrugated sheet of Figure 12.

Figure 14 is a diagram showing the manufacturing process of a double double layer filter.

Figure 15 is a diagram showing the manufacturing process of a double-pore filter.

Figure 16 is a diagram showing the manufacturing process of a dual ordinary filter.

Fig. 17 is a view showing the manufacturing process of the filter cigarette.

Fig. 18 is a view showing the flow of feedback control used in the island portion which should be formed on the corrugated sheet.

Fig. 19 is a schematic view showing a laser perforating machine in which a double filter cigarette forms a vent hole and a delivery hole.

1 showing a first display system first embodiment of the filter cigarette of the present invention 10 _A. The filter cigarette 10 _A system comprising: a cigarette 12, and 14 _D are arranged in a cylindrical filter end of the cigarette group 12 is serially. 14 _D lines 12 and these filter cigarette wrapping paper 16 by the outside air permeability of the non-interconnected.

In this embodiment, as shown, the filter system 14 _D in FIG. 2 show a dual-layer type filter, and comprising: forming the filter 14 _D mouthpiece end surface 18 of the ordinary filter element 20, and for example, a cigarette 12 bits Side charcoal filter element 22. These elements 22, 24 are connected to each other by winding of the forming paper 24.

The conventional filter element 20 includes a filter fiber bundle 26 and a take-up paper 28 that covers the bundle 26. On the other hand, when the charcoal filter element 22 is compared with the ordinary filter element 20, the activated carbon particles 30 are repeatedly contained, and these particles are distributed in the filter fiber bundle 26.

The filter fiber bundle 26 forms a filter core, and the formed paper 24 and the take-up paper 28 have air permeability in the present embodiment, and form a filter package covering the filter core. For example, the forming paper 24 and the winding paper 28 each have a 10000 Coresta unit (Coresta unit: cm ³ ‧ min ^-1 ‧ cm ^-2 ‧ kPa) or more, and preferably have an air permeability of 30,000 Coresta units or more, respectively.

Further, the ordinary filter element 20 has a plurality of axial direction passages 32 on the outer peripheral portion of the ordinary filter element 20, and the axial direction passages 32 are known from the third figure, and are in the periphery of the ordinary filter element 20. The direction is configured across the interval. In order to form such an axial direction passage 32, the filter fiber bundle 26 in the ordinary filter element 20 has, for example, an air non-penetrating wave outer peripheral surface 34 which cooperates with the take-up paper 28 to An axial passage 32 is formed between the corrugated outer peripheral surface 34 and the take-up paper 28.

All of the axial direction passages 32 have inner ends that are open at the inner end surface 36 of the ordinary filter element 20 on the side of the charcoal filter element 22. However, in the present embodiment, not all of the outer ends of the axial direction passages 32 are formed with open ends that are open at the suction port end faces 18. That is, although the plurality of outer ends of the axial direction passage 32 are open at the suction port end surface 18, the air-non-permeable dam portion 38 is disposed at the remaining outer ends of the axial direction passage 32, and the dam portions 38 are closed. Corresponding to the open end of the axial direction passage 32.

Hereinafter, the symbol a is added to the component symbol 32 having the axial direction passage of the dam portion 38, and the component symbol 32 is provided with the component symbol 32 not including the axial direction passage of the dam portion 38.

As is apparent from the third embodiment, in the present embodiment, the dam portion 38 is disposed in every one axial direction passage 32 when viewed in the circumferential direction of the ordinary filter element 20. That is, the dam portion 38 is installed in half of the axial direction passage 32. In the first to third figures, the dam portion 38 is shown in reverse white.

The dam portion 38 may be installed in a larger number of axial passages 32 than the axial passage 32, or may be installed in all of the axial passages 32.

On the other hand, as shown in FIG. 1, for example, the outer sheet 16 having two rows of vent holes 40, vent line 40 of each row covering the whole circumference of the filter 14 _D, at spaced intervals in the circumferential direction of the filter 14 _D And the distribution. This line-like vent holes 40 during smoking of the filter cigarette 10 _A, allowing the outside air introduced into the filter 14 _D. At this time, in the second drawing, the external air system indicated by the arrow V _A is introduced into the filter fiber bundle 26 in the ordinary filter element 20 through the forming paper 24 and the take-up paper 28. When the introduction of the outside air is permitted, the vent holes 40 of the two rows are disposed at a distance of, for example, 10.0 mm or more from the suction port end surface 18.

Furthermore, the outer sheet 16, each having a vent hole 40 and the discharge holes 2 further differs from 42 rows, each row of discharge holes 42 also covers the entire circumference of the filter 14 _D, therebetween in the circumferential direction of the filter 14 _D Distributed at intervals. This general system delivery hole 42 is formed in the vicinity of the dam portion 38, and during smoking the filter cigarette 10 _A dam portion 38 is disposed in a position within the user's mouth together.

In the present embodiment, the delivery hole 42 and the dam portion 38 are both present in a region within a predetermined distance D (refer to FIG. 1) from the suction port end surface 18. The distance D can be set, for example, to 8 mm or less, preferably 5.0 mm. Hereinafter, it is more preferably 3.0 mm or less, and most preferably various distances such as 1.5 mm or less. However, in order to allow the dam portion 38 and the delivery opening 42 to be located in the user's mouth during smoking, the distance D is preferably as short as possible.

The delivery holes 42 are preferably communicated with the axial direction passages 32a only by the forming paper 24 and the winding paper 28, respectively. However, a part of the delivery hole 42 may communicate with the axial direction passage 32b by the forming paper 24 and the winding paper 28.

According to the filter cigarettes 10 _A, at the time of smoking, the mainstream smoke from the cigarettes produced 12, 22 and the main elements of an ordinary sequence such as the filter elements shown in FIG. 2 by arrow S _M by the charcoal filter 20, and The filter elements 22 and 20 are thereby subjected to a predetermined filtering action. Then, as in the illustration in FIG. 1, the system S _M mainstream smoke within the user's mouth from the suction port 18 feed end face in the axial direction of the filter cigarette 10 _A.

At the time of smoking, the external air V _A is introduced into the charcoal filter element 22 from the vent hole 40 through the forming paper 24 and the take-up paper 28 of the filter 140, and the external air V _A dilutes the mainstream smoke S _M . Therefore, the diluted mainstream smoke _MM is fed into the user's mouth to provide a more relaxed smoking sensation for the user.

On the other hand, part of the mainstream smoke S _M after dilution is introduced into the axial direction of the ordinary filter element 20 from the charcoal filter element 22 as the mainstream smoke indicated by the arrows S _P and S _Q in FIG. 2 . Inside the passages 32a, 32b, and toward the mouth end face 18.

The mainstream smoke S _P introduced into the axial direction passage 32a is blocked by the dam portion 38 and is not fed into the oral cavity of the user from the mouth end surface 18. However, since the axial direction passage 32a passes through the take-up paper 28 and the forming paper 24 and communicates with the delivery hole 42, and the dam portion 38 and the delivery hole 42 are both located in the user's mouth when smoking, the mainstream smoke S _P system The mainstream smoke indicated by the arrow S _R in Fig. 2 is sent out from the axial direction passage 32a through the delivery hole 42 into the oral cavity of the user. At this point, the mainstream smoke is not S _P 20 filter ordinary filter elements. As shown in the inset of Fig. 1, the mainstream smoke S _R is sent out in the diameter direction of the filter cigarette 10 _A in the user's mouth.

On the other hand, axial passage is introduced into the mainstream smoke with the mainstream smoke S _Q S _M lines within the same 32b, the suction port 18 is sent to the end face of the user within the oral cavity. The mainstream smoke S _{Q is} also not filtered by the ordinary filter element 20.

As described above, in the case of smoking, in addition to the flow of the mainstream smokes S _P , S _Q in the axial direction of the filter cigarette 10 _A in the user's mouth, the diameter direction of the filter cigarette 10 _A is also generated. The flow of mainstream smoke S _R , so mainstream smoke spreads equally in the mouth. Therefore, even if the mainstream smoke is diluted, the user can effectively taste the flavor and taste of the mainstream smoke.

Since the vent hole 40 and the delivery hole 42 are provided in two rows (refer to FIG. 1), the external air V _A and the mainstream smoke S _R in FIG. 2 should each be displayed in two. However, in order to simplify the drawing, in the second drawing, the outside air V _A and the mainstream smoke S _R are typically one.

In addition, in the second drawing, in order to more clearly show the flow of the outside air V _A and the mainstream smoke S _R , the forming paper 24 and the winding paper 28 have a state in which they communicate with the communication holes of the vent hole 40 and the delivery hole 42 respectively. To show. However, even if the forming paper 24 and the winding paper 28 are air-permeable as described above, the function of the communication hole can be obtained.

Figs. 4 to 6 show a part of the filter cigarettes 10 _B to 10 _D of the second to fourth embodiments, and the filter cigarettes 10 _B to 10 _D are described below.

In the case of explaining the filter cigarettes 10 _B to 10 _D , in order to avoid repetition of the description, in FIGS. 4 to 6 , the same components are attached to the same constituent elements as those of the filter cigarette described above.

The second embodiment of the filter cigarette of 10 _B (FIG. 4) when the filter cigarette 10 _A control system comprising a filter in place of filter 14 _C 14 _D. The filter system 14 _c displayed as an empty pass filter, the filter element 20 in the general re-charcoal filter element 44 is provided between the aperture 22 free. According to the filter 14c, the mainstream smokes S _M and S _P diluted by the external gas V _A are mixed in the holes 44, and the dilution ratios of the mainstream smokes S _M and S _P (S _R , S _Q ) are Close to the same value.

The filter cigarette of the third embodiment 10 _C (FIG. 5) when the filter cigarette 10 _A control system comprising a filter in place of filter 14 _P 14 _D. The filter 14 _P is shown as a normal type filter and includes only the ordinary filter element 46. The ordinary filter element 46 is added to the portion of the charcoal filter element 22 in addition to the ordinary filter element 20, and the vent hole 40 communicates with the axis direction passage 32 only by the take-up paper 28, and other ordinary The filter element 20 is the same. At this time, the filter fiber bundle 26 and the take-up paper 28 in the ordinary filter element 46 form the filter core and the filter package of the filter 14 _P , respectively.

The filter cigarette 10 _D (Fig. 6) of the fourth embodiment includes a filter 14 _D ' in place of the filter 14 _{D in} comparison with the filter cigarette 10 _A. The filter 14 _D 'shaped lines extending only point of the paper sheet 24 and the winding 28 in the vent hole 40 and further through the discharge holes 42, respectively, and the filter 14 _D different. That is, the filter 14 _D ' is different from the vent hole 40 and the delivery hole 42 shown in FIGS. 2, 4, and 5, respectively, and has the vent hole 40 and the delivery hole 42 as shown in FIG. . At this time, the forming paper 24 and the winding paper 28 may not have air permeability.

As seen from Fig. 6, the delivery holes 42 have, as described above, the outer surface of the layer 16 which is located in the region of the distance D from the end face 18 of the suction port and which is located outside the dam portion 38, and which is open at the outer surface of the layer 16 and communicated with axial passage 32a, 32b of the inner end, the inner end of feed hole 42 in the axial line direction of the filter cigarette 10 _D, than the outer end of the discharge holes 42 further away from the end face of the mouthpiece 18 is disposed. That is, the delivery hole 42 is not formed as a vertical hole with respect to the axial direction of the filter cigarette 10 _D , but is formed as an inclined inclined hole.

At this time, as indicated by a broken line in FIG. 6, the end portion of the dam portion 38 is preferably present in the vicinity of the inner end of the delivery hole 42. For this reason, in the dam portion 38, the mainstream smoke S _P is smoothly guided to the delivery hole 42, and the mainstream smoke S _R to be sent out to the user's mouth can be strongly sent out from the delivery hole 42.

The filter cigarettes 10 _B , 10 _C , and 10 _{D of} the second to fourth embodiments naturally have the same functions and advantages as those of the filter cigarette 10 _{A of the} first embodiment. The vent hole 40 and the delivery hole 42 of the filter cigarette 10 _D can be similarly applied to the filter cigarettes 10 _A , 10 _B , and 10 _C .

Next, in the description of the manufacturing method of the filter cigarettes 10 _A , 10 _B , 10 _C , and 10 _D , the preparation step of preparing the filter cigarette 10 _D will be first described.

Figure 7 shows the rod manufacturing machine 48. The rod maker 48 includes a package section 50 having a continuous assembled conveyor belt 52. The assembly conveyor belt 52 travels in the direction of the arrow R in Fig. 7.

The diaphragm 54 for forming the take-up paper 28, and the filter tows 56, 58 for forming the filter fiber bundle 26, are respectively supplied to the assembly conveyor 52, and the diaphragm 54 and the filter tow 56 are provided. The 58 series are sequentially superposed on the assembly conveyor 52. The diaphragm 54 is fed from the roller 60, and the filter tows 56, 58 are fed from the tow sources 62, 64, respectively.

Before the filter tow 56 reaches the package section 50, the filter tow 56 is passed through a pair of pre-tensioning rolls 66, a pair of priming rolls 68, a plasticizer (e.g., triacetin) addition device 70, etc. A pair of corrugating rolls 72.

As shown in Fig. 8, the pair of wave forming rolls 72 respectively have a peripheral surface which is engaged with each other and is heated to a predetermined temperature (e.g., 140 to 150 ° C, preferably 145 ° C). Therefore, when the filter tow 56 passes through the pair of corrugated forming rolls 72, the filter tow 56 is formed into a corrugated sheet 74 from a flat sheet form (first step), and the corrugated sheet 74 is formed into a pair of corrugated shapes. The speed at which the peripheral speeds of the rolls 72 match is continuously sent out from the wave forming roll 72.

As shown in Fig. 9 and Fig. 10, the single side of the corrugated sheet 74 is formed by a plurality of lengthwise grooves 76, and the lengthwise grooves are formed. The 76 series extends in the longitudinal direction of the filter tow 56 and abuts each other in the width direction of the filter tow 56. In Fig. 9, the broken line shows the valley portion of the longitudinal direction groove 76, and the other side of the corrugated sheet 74 is of course also formed by the longitudinal direction groove.

Not all of the longitudinal grooves 76 are continuous in the longitudinal direction of the corrugated sheet 74, but each of the longitudinal grooves 76 is formed by the flat island portion 80 for forming the dam portion 38 when viewed in the width direction of the corrugated sheet 74. It is closed periodically.

Therefore, the island portion 80 is formed in the group G in which the corrugated sheets 74 are arranged in the width direction, and the group G of the island portions 80 is disposed at a predetermined interval in the longitudinal direction of the corrugated sheet 74. The island portion 80 is formed by periodically eliminating the meshing of the outer peripheral surfaces of the pair of wave forming rolls 72 along the circumferential direction of the wave forming roll 72.

Group G above between the island portion 80, ensure constant pitch P _T (FIG. 9), the pitch P _T corresponding to the length of the common line 20 or 46 of the filter element 2 times. Further, in Fig. 11, the width of the island portion 80 along the longitudinal direction of the corrugated sheet 74 is indicated by the element symbol W, and the width W corresponds to two portions of the dam portion 38.

When the corrugated sheet 74 is overlaid on the mounting belt 52 via the diaphragm 54, the corrugated sheet 74 to which the island portion 80 should contact the diaphragm 54 is shaped.

On the other hand, before the filter tow 58 reaches the package section 50, the filter tow 58 is sequentially passed through a pair of pre-tensioning rolls 82, a pair of priming rolls 84, and a plasticizer (e.g., triacetin). Device 86, a pair of delivery rollers 88, and a horn guide 90. The speaker guide 90 is a filter tow 58 The sheet form is tightened into a rod form, whereby the filter tow 58 of the rod form is superposed on the assembly belt 52 via the corrugated sheet 74 and the diaphragm 54.

Then, when the filter tow 58 and the corrugated sheet 74 pass through the assembly of the conveyor belt 52 and the packaging section 50, the diaphragm 54 is coated with the conveyor belt 52, and the corrugated sheet 74 is rounded and coated as a filter material. Filter tow 58. Thereby, a continuum Cp for forming the ordinary filter element 20 or 46 is formed, which is sent out from the packaging section 50.

The continuous body Cp has a plurality of pipes which are the axial passages 32a and 32b between the diaphragm 54 and the longitudinal groove 76 of the corrugated sheet 74. Therefore, in the present embodiment, the corrugated sheet 74 forms the corrugated outer peripheral surface 34 of the ordinary filter element 20 or 46 (refer to Fig. 3). At this time, both side edges of the corrugated sheet 74 are only the width of the longitudinal direction groove 76. Approximately 1.2 times the overlap overlaps each other.

Before the film 54 reaches the packaging section 50, the film 54 is precoated with a guide paste for bonding the film 54 and the corrugated sheet 74, and two for bonding the mutually overlapping diaphragms 54. The edge of the gap paste.

Then, the continuous body Cp is cut at a certain cutting timing in the cutting section 92 when passing through the cutting section 92, and the cutting body forms the continuous body Cp into each ordinary filter rod PFR. . These ordinary filter rods PFR are equivalent to an even multiple of the ordinary filter element 20, whereby the ordinary filter element 20 can be obtained from the ordinary filter rod PFR.

As shown in FIG. 12 and FIG. 13, the island portion 80 may cover the entire width direction of the corrugated sheet 74, that is, cover all of the lengthwise grooves 76, and may be divided into two island portions. 80a, 80b.

When all of the axial direction grooves 76 are provided in the axial direction passages 76, all of the axial direction passages 32 are provided with the axial direction passages 32a having the dam portions 38, so that they are sent out to the axial direction passages 32a. The hole 42 can increase the amount of the mainstream smoke _SR , so that the user can strongly taste the original flavor and taste of the cigarette 12.

The island portion 80 and the island portions 80a and 80b shown in Figs. 11 and 13 are open on the other side of the corrugated sheet 74, but in the eleventh and thirteenth figures, as shown by the single-dot chain line The island 80 and the islands 80a, 80b may also be solid.

On the other hand, the charcoal filter element 22 can be obtained by cutting the charcoal filter rod CFR. The charcoal filter rod CFR is manufactured by changing the rod manufacturing machine 48 of Fig. 7 to a rod manufacturing machine 48'. In the rod manufacturing machine 48', the constituent elements in the block BL indicated by the one-dot chain line are removed from the rod manufacturing machine 48, and at the same time in the supply path of the filter tow 58, as shown by a single-dot chain line A new addition device 94 is added as usual. This adding device 94 is disposed, for example, between the adding device 86 and the pair of feeding rollers 88, and spreads the activated carbon particles to the filter tow 58.

In the rod manufacturing machine 48', a charcoal filter rod CFR is formed by coating the filter tow 58 containing the activated carbon particles only with the diaphragm 54, which corresponds to the charcoal filter element 22. Even multiples.

Fig. 14 shows the flow of the double double-layer filter DDF corresponding to the filter 14 _D from the ordinary filter rod PFR and the charcoal filter rod CFR (third step).

First, the ordinary filter rod PFR is cut to be equivalent to Two double ordinary filter DPFs of the filter element 20 are provided, and the double ordinary filter DPF has an island portion 80 at the center. On the other hand, the charcoal filter rod CFR is also cut into two parts of the double charcoal filter DCF corresponding to the charcoal filter element 22.

Then, the dual ordinary filter DPF and the double charcoal filter DCF are arranged such that the double ordinary filter DPF and the double charcoal filter DCF are alternately arranged to form one filter row FA. The filter row FA is thus coated by a rod manufacturing machine similar to the above-described rod manufacturing machine 48' to form a film 96 of the forming paper 24, thereby forming a continuous body C _D .

Then, the continuum CD _D is cut into two double-deck filter DDFs corresponding to the filter 14 _D , and the double double-layer filter DDF is provided in the center including the double ordinary filter DPF, and is disposed in the The charcoal filter element 22 at both ends of the dual ordinary filter DPF. The charcoal filter element 22 can be obtained by cutting the continuum C _D at the center of the double charcoal filter DCF.

On the other hand, Fig. 15 shows a flow of the double-hole filter DCF corresponding to the filter 14 _C from the ordinary filter rod PFR and the charcoal filter rod CFR (third step).

When the flow of Fig. 15 is compared with the flow of Fig. 14, the filter row FA' is formed instead of the filter row FA, which is different from the flow of Fig. 14. As is apparent from Fig. 15, in the filter row FA', a space S corresponding to the above-described voids 44 is secured between the double normal filter DPF and the double charcoal filter DCF.

Thus, the filter row FA' is also covered by the diaphragm 96, thereby forming a continuous body C _C . Then, the continuum C _D is cut into a double hole filter DCF, and each double hole filter DCF is disposed in the center including a double ordinary filter DPF, and a partition hole 44 is respectively disposed in the double ordinary filter DPF. The charcoal filter element 22 at both ends.

Further, Fig. 16 shows a flow of the double ordinary filter WPF which is equivalent to two parts of the filter 14 _P from the ordinary filter rod PFR (third step). The double ordinary filter WPF is obtained by cutting the ordinary filter rod PFR and has an island portion 80 at the center.

One of the double double filter DDF, the double hole filter DCF and the double ordinary filter WPF is supplied as a double filter DF together with the double cigarette DC to the filter cigarette making machine, the manufacturing machine is from the double Two filter cigarettes 10 were produced by the filter DF and the double cigarette DC.

Fig. 17 shows the manufacturing flow of the filter cigarette 10 (fourth and fifth steps).

First, the double cigarette DC is equally cut, and two cigarettes 12 are obtained from the double cigarette DC. A space is ensured between the two cigarettes 12, and the double filter DF is supplied to the space.

The two cigarettes 12 are respectively adhered to both ends of the double filter DF, and the cigarettes 12 and the double filter DF form the intermediate product I of the double filter cigarette DFC.

A double outer layer DTP is supplied to the intermediate product I. The double outer paper DTP has a width twice that of the outer paper 16, and the film 98 is cut into a predetermined length. As shown in Fig. 17, when the film 98 is equally divided into two regions corresponding to the respective outer sheets 16, the regions of the film 98 are formed in advance by mechanical or optical means. The rows of the vent holes 40 and the rows of the delivery holes 42 that are assigned to the filters 14 _D' , 14 _C or 14 _P , and the rows of the vent holes 40 and the delivery holes 42 extend in the longitudinal direction of the diaphragm 98.

At this time, the vent hole 40 and the delivery hole 42 are formed while the diaphragm 98 is being supplied toward the intermediate product I, or the diaphragm 98 having the vent hole 40 and the delivery hole 42 is supplied toward the intermediate product I.

In Fig. 17, the vent hole 40 and the delivery hole 42 each have only one row in each region, but actually, each region has two rows of vent holes 40 and delivery holes 42 (refer to Fig. 1). Further, on the inner surface of the diaphragm 98, the vent hole 40 and the row of the delivery holes 42 are avoided, and the paste is applied in advance.

Therefore, when the double outer layer paper DTP supplied to the intermediate product I is wound around the intermediate product I, the double outer layer paper DTP integrally bonds the two cigarettes 12 and the double filter DF, thereby forming a double filter. Cigarette DFC. At this time, the delivery hole 42 of the double outer layer DTP is placed in the vicinity of both sides of the island portion 80 of the double filter DF, and communicates with the axis of the double filter DF via at least one of the forming paper 24 and the winding paper 28. The position of each path of the directional path 32a. However, as described above, a part of the delivery hole 42 can be allowed to communicate with the axial direction passage 32b via at least one of the forming paper 24 and the winding paper 28, so that the delivery hole 42 is positioned in the longitudinal direction of the axial direction passage 32. Alternatively, since the axial direction passage 32 has a certain width along the longitudinal direction, the positioning of the delivery hole 42 is relatively easy.

Then, the double filter cigarette DFC is equally cut at the center of the double filter DF, that is, at the center of the island portion 80, and is formed into 2 Root filter cigarette 10. The cutting of the island portion 80 provides the dam portion 38 to the filter 14 of each filter cigarette 10. When the island portion 80 is divided into the two island portions 80a and 80b as described above (refer to Fig. 13), the island portion 80 is cut by the gap K between the island portions 80a and 80b.

Here, if a double dual filter DF DDF double filter, having a filter cigarette filter is formed of 14 _D 10 _A (refer to FIG. 1). Further, when the dual filter DF is double the DCF filter pores, 10 _B is formed with a filter of the filter cigarette 14 _C (refer to FIG. 4). Further, if the double filter DF is a double ordinary filter DPF, the filter cigarette 10 _C having the filter 14 _P is formed (refer to Fig. 5). Then, as shown in Fig. 17, the manufactured filter cigarette 10 is moved to the packaging machine after integrating the direction.

As described above, the vent hole 40 and the delivery hole 42 are formed in the diaphragm 98 at the stage before the double outer layer paper DTP is wound around the intermediate product I. However, it will be understood from the description of the manufacture of the filter 14 _D ' that, in the state of the double filter cigarette DFC or the filter cigarette 10, the laser light may be irradiated on the double outer paper DTP or the outer paper 16 and The vent hole 40 and the delivery hole 42 are formed by the laser light. At this time, the vent hole 40 and the delivery hole 42 extend from the outer layer paper 16 to the inner surface of the take-up paper 14 regardless of whether or not the take-up paper 28 is present.

As described above, the dam portion 38 of the filter 14 _D' , 14 _C' or 14 _{P is obtained} by cutting the group G of the island portions 80 of the double filter DF. Therefore, in order to make the dam portion 38 Adjacent to the mouth end face 18 of the filter 14 _D' , 14 _C' or 14 _P , the group G of islands 80 must be correctly positioned in the center of the double filter DF.

Therefore, the rod manufacturing machine 48 of the present embodiment is provided with a control device 100 for controlling the position of the group G of the island portions 80 in the double normal filter DPF when the double normal filter DPF is formed, and the control device 100 The outline is shown in Figure 7.

The control device 100 includes an island sensor 102 for optically detecting the island portion 80, such as a supply path of the filter tow 56, disposed in a pair of wave forming rolls 72 and a packaging area. Between segments 50. When the island sensor 102 is viewed from FIG. 7, the light is irradiated toward the longitudinal direction groove 76 including the island portion 80 from the lower side of the corrugated sheet 74, and is received from the longitudinal direction groove 76 and the island portion 80. The reflected light is reflected, and the island portion 80 is detected based on the intensity of the reflected light. Here, since each of the island portions 80 is extremely small, the island sensor 102 preferably irradiates the island portion 80 with laser light that is easily reduced to a small spot diameter.

Therefore, the island sensor 102 periodically generates the detection signal S _D (the first detection program) when detecting the island portion 80 of each group G, and the detection signals S _D are transmitted to the speed controller 104. .

On the other hand, the cutting section 92 periodically generates the cutting signal S _C indicating the cutting timing of the continuous body Cp, and the cutting signals S _{C are} also transmitted to the speed controller 104. The speed controller 104 is first based on the detection signal S _D , the cut signal S _C , the distance between the island sensor 102 and the cut-off section 92, and the transport speed of the corrugated sheet 74 by the wave shaping roll 72. The actual position of each group G of the island portions 80 included in the ordinary filter rod PFR is detected (the actual position here is based on the continuum Cp when viewed from the group of the island portions 80 above the continuum Cp) The cut position is determined). The representative of the actual position of each group G detects, for example, the distance from the front cut surface of the normal filter rod PFR to the first group G. In other words, when the double filter DF is cut from the normal filter rod PFR, the actual position of the group G including one island portion 80 in the double filter DF is detected (second detection procedure) ).

Then, the speed controller 104 is based on the actual position of each group G of the islands 80, and the target position to be positioned in the double normal filter DPF with the group G of the islands 80 (for example, the central position of the double filter DF) And, when manufacturing the filter cigarette 10, the deviation between the dam portion 38 at a predetermined position between the inner end of the delivery hole 42 and the suction end surface 18) generates a control signal S _X and the control signal S _{X is} transmitted to the drive motor of the wave shaping roll 72.

Therefore, the conveyance speed of the corrugated sheet 74 by the corrugation forming roller 72 is subjected to the return control (control program) based on the control signal S _X . Therefore, the actual position of the group G of the island portion 80 with respect to the cutting position of the continuum Cp is changed in order to eliminate the above-described deviation, and as a result, the actual position of the group G of the island portions 80 in the double filter DF can be maintained. At the target location. Figure 18 shows the flow of the above feedback control.

The island sensor 102 may also be disposed between the packaging section 50 and the cutting section 92 as shown by a single-dot chain line in FIG. At this time, since the island sensor 102 detects the island portion 80 in the continuous body Cp, the diaphragm 54 of the continuous body Cp is limited to the one that allows the laser light to pass through.

On the other hand, the filter cigarette 10 _D having the filter 14 _D ' is wound in the middle of the double-deck filter DDF by the double outer layer DTP' in which the vent hole 40 and the delivery hole 42 are not formed. In the case of the product I, the double filter cigarette DFC' was formed, and the row of the vent holes 40 and the row of the delivery holes 42 were respectively formed on the double outer layer paper DTP'.

The feedback control described above can of course be implemented when forming the double double filter DDF for the filter 14 _D '.

At this time, at the time of forming the vent hole 40 and the delivery hole 42, for example, a laser piercer 106 shown in Fig. 19 can be used, and the laser piercing machine 106 is disposed to transfer the double filter cigarette DFC'. Above the perforation position specified by the path.

The laser perforating machine 106 has four ejection ports 108a to 108d, the ejection port is internally provided with a laser generating source (not shown), and the laser light generated from the laser generating source is directed to the double filter. The double outer paper DTP' of the mouth cigarette DFC' is intermittently shot. These injection ports 108a to 108d are arranged at a predetermined interval in the axial direction of the double filter cigarette DFC'. For example, in the injection ports 108a to 108d, the two injection ports 108a and 108c are disposed at the center, intermittently. The laser light L ₁ perpendicular to the axial direction of the double filter cigarette DFC' is emitted, and on the other hand, the remaining injection ports 108a, 108d intermittently emit the axis relative to the double filter cigarette DFC' in a mutually intersecting manner. The direction of the oblique laser light L ₂ .

Since the functions required for the vent hole 40 and the delivery hole 42 are different as described above, the laser generation source and the condensing condition of the laser light used when forming the vent hole 40 and the delivery hole 42 are respectively The intermittent emission intervals of the laser light and the like are often different from each other.

When the dual filter cigarette DFC' reaches the perforation position, the transfer of the dual filter cigarette DFC' is temporarily stopped at the perforation position, and in the perforation position, the dual filter cigarette DFC' rotates about the axis A. Thereby, the laser light L ₁ is a row in which the double outer paper DTP' forms a vent hole 40, and the laser light L ₂ is a row in which the double outer paper DTP' forms a delivery hole 42, respectively.

As aforesaid, when the laser beam L ₁ intersect each other, is not limited by the layout of injection holes 108a to 108d, may be on both sides of the island portion 80 and the vicinity of the island portion 80 are formed feed holes 42 of the row.

When each of the filter cigarettes 10 _D obtained from the double filter cigarette DFC' has two rows of the vent holes 40 and the delivery holes 42, the respective laser beams L ₁ and L ₂ are divided into two laser beams. Further, the laser perforation on the above line may be performed after the double filter cigarette DFC' is cut into individual filter cigarettes.

In the manufacturing method of the present invention, the continuum C (continuous body C _P , C _D or C _C ) may be cut by the group G of the islands 80 to directly form the filter 14 (14 _P , 14 _D or 14 _C ). (Step 3), then, the method of manufacturing the filter cigarette 10 (10 _A , 10 _B or 10 _C ) by connecting the filter 14 and the cigarette 12 by the outer paper 16 (fourth step) (fourth step) .

Further, in the manufacturing method of the present invention, after the filter 14 is directly formed (the third step), the filter 14 is connected to both ends of the double cigarette DC via the outer layer paper 16 to form a double filter cigarette (step 4). Then, the method of manufacturing the respective filter cigarettes by cutting the double filter cigarettes in the center of the double cigarettes (the fifth step).

The above-described method for manufacturing the filter 14 is formed directly, but we also equally applicable to the manufacture of filter cigarettes 10 _D. In this case, the manufacturing method of the present invention based on a group G to the cutting portion 80 to form the continuous filter body C _D 14 _D (step 3), followed by the paper is not provided with the vent holes 40 and discharge holes 42 of the The filter 14 _D and the cigarette 12 are connected, and then the vent hole 40 and the delivery hole 42 are formed to manufacture the filter cigarette 10 _D (the fourth step).

Alternatively, the production method of the present invention may be based by the filter paper 14 _D are respectively connected to both ends of a double cigarette DC, and a double filter cigarettes, the vent hole 40 is formed and then the discharge holes 42 (step 4), after The center of the double cigarette DC cuts the double filter cigarette (the fifth step), and each filter cigarette 10 _{D is} manufactured.

On the other hand, regarding the feedback control of the manufacture of the ordinary filter rod PFR, it is also possible to control the cutting timing of the continuous body instead of the conveying speed of the corrugated sheet, or to control the conveying speed of the corrugated sheet and the cutting timing of the continuous body. By.

As long as the combination of the effects of the present invention is obtained, each of the constituent elements and the respective condition settings in the respective embodiments of the present invention described above can be individually and independently combined.

10 _A ‧‧‧ Filter cigarette

12‧‧ ‧ Cigarettes

14 _D ‧‧‧ Filter

16‧‧‧ outer paper

18‧‧‧ suction end face

20‧‧‧Ordinary filter elements

22‧‧‧ Charcoal filter elements

24‧‧‧Forming paper (filter packing material)

26‧‧‧Filter fiber bundle (filter material)

28‧‧‧Winding paper (filter packing material)

30‧‧‧Activated carbon particles

32a‧‧‧Axis-direction access

36‧‧‧ inside end

38‧‧‧ dam

40‧‧‧vents

42‧‧‧Send hole

S _M , S _P , S _R , S _Q ‧‧‧ mainstream smoke

V _A ‧‧‧ arrow

Claims (8)

A filter cigarette comprising: a cigarette; a filter, which is a cylindrical filter arranged in series at a base end of the cigarette, and includes: a filter formed of a filter material and having a corrugated outer peripheral surface a nozzle core; a filter package covering the filter core; being defined between the filter package and the outer peripheral surface of the waveform, extending toward an axial direction of the filter, and having a suction port end surface of the filter a plurality of axial direction passages for guiding the mainstream smoke from the cigarette toward the end face of the suction port; and a plurality of passages disposed in the axial direction and closing the dam portion of the open end; and an outer layer of paper And winding the cigarette and the filter, and connecting the cigarette and the filter outer layer paper, and configured to communicate with the axial direction passage including the dam portion via the filter package material, and When the cigarette is smoked, a plurality of delivery holes are co-located with the dam portion in the mouth of the user. The filter cigarette according to claim 1, wherein a distance between the delivery hole and the end surface of the suction port is 8.0 mm or less. The filter cigarette according to claim 1 or 2, wherein the dam portion is installed in at least half of the axial direction passage. The filter cigarette according to any one of claims 1 to 3, wherein the outer layer paper includes a plurality of vent holes different from the delivery holes, and the vent holes allow external air to be introduced into the filter Inside. The filter cigarette according to any one of claims 1 to 4, wherein the filter comprises a hole disposed between the vent hole and the axial direction passage. A method for producing a filter cigarette according to the first aspect of the invention, comprising: forming a corrugated sheet continuously by rotation of a pair of corrugating rolls, and feeding the same; The corrugated sheet includes a plurality of longitudinal grooves forming one surface of the corrugated sheet, and a group of islands provided in a plurality of the longitudinal grooves, and the island portions of each group are arranged in the width direction of the corrugated sheet, and a first step of arranging the width of two portions of the dam portion and the group of the island portions at regular intervals along the longitudinal direction groove; after the first step, from the corrugated sheet, the filter material, and the filter The nozzle material is formed into a rod-shaped continuous body which is formed between the longitudinal direction groove of the corrugated sheet and the filter wrapper, and has a line which serves as the axial direction passage of the filter. a second step; after the second step, when the continuous body is cut to prepare the filter including the dam portion formed by one group of the island portions, the island portion is a third step of cutting the continuous body so that the position of the group is a predetermined position with respect to the cutting position of the continuous body; and after the third step, the outer paper is used to connect the cigarette to the filter, and the The outer paper has the aforementioned axial direction passages respectively The fourth step of the state of the aforementioned delivery hole to be dispensed. The method for producing a filter cigarette according to claim 6, wherein the third step is to periodically cut the continuous body to form a rod member including a group of the island portions, and then Forming a double filter corresponding to two parts of the filter in such a manner as to include the rod member or a part of the rod member, the double filter having one group of the island portions in the center of the double filter The fourth step is that the cigarettes are respectively disposed at both ends of the double filter, and then the double outer paper having the double width of the outer layer paper is wound around the cigarette and the double filter to form a cigarette. a double-filter cigarette of the filter cigarette, wherein the double outer paper has a state in which the axial direction passages of the respective filters have the delivery holes to be dispensed; the manufacturing method is provided : The fifth step of cutting the double filter cigarettes in the island portion of the double filter to form two filter cigarettes. The method of manufacturing a filter cigarette according to claim 6 or 7, wherein the third step includes: detecting a group of the island portions, and periodically generating a first detection program of the detection signal; In the third step, the cutting timing of the continuous body and the detection signal detect a second detection program of the cutting position on the continuous body when viewed from the group of the island portions; and in order to eliminate the cutting The deviation between the broken position and the aforementioned predetermined position The control program for feedback control of at least one of the transfer speed of the corrugated sheet caused by the pair of corrugated rolls and the cut-off timing of the continuous body.